CN216083410U

CN216083410U - Developing box

Info

Publication number: CN216083410U
Application number: CN202122116525.XU
Authority: CN
Inventors: 谭武刚
Original assignee: Zhuhai Un Tern Imaging Products Co ltd
Current assignee: Zhuhai Un Tern Imaging Products Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-03-18
Anticipated expiration: 2031-09-02

Abstract

The utility model discloses a developing box, which comprises a frame, a driving force receiving piece, a transmission mechanism and a detected component, wherein the driving force receiving piece and the detected component are installed on the frame, and the detected component is connected with the driving force receiving piece through the transmission mechanism and moves under the driving of the driving force receiving piece; the detected component comprises a screw rod, a sliding block and a detected piece, one end of the screw rod is connected with the transmission mechanism, the sliding block is installed on the screw rod and moves along the axial direction of the screw rod when the screw rod rotates, and the detected piece is movably installed on the frame and moves under the pushing of the sliding block. The screw, the sliding block and the detected piece form a detected component, and the detected component and the detecting element of the imaging device are matched to complete the new and old detection work of the developing box, so that the manufacturing rate and the production efficiency are improved, and the production cost is reduced.

Description

Developing box

Technical Field

The utility model relates to the field of electrophotographic imaging equipment, in particular to a developing box.

Background

In an electrophotographic image forming apparatus, one of the core constituent members is a developing cartridge. In order to detect whether or not a developing cartridge mounted in an electrophotographic image forming apparatus has been used, it is known to determine whether or not a mounted developing cartridge has been used by providing a detection member on the developing cartridge to match a detection member provided in the electrophotographic image forming apparatus.

In the prior art, a developing cartridge exists, a detected device and a power receiving assembly of the developing cartridge are respectively located at two sides of a shell, and the power receiving assembly comprises a driving gear, a transition gear and a stirring member gear; the device to be detected comprises a transmission gear and a tooth-missing gear, the transmission gear is sleeved at the end part of the stirring frame, and the tooth-missing gear comprises a detection protrusion which can be contacted with a detection component in the electrophotographic imaging equipment. The power receiving assembly can receive driving force from the imaging device and drive the transmission gear to rotate through the stirring component gear, when the transmission gear is meshed with a toothed part of the toothless gear, the transmission gear drives the toothless gear to rotate, when the transmission gear rotates, the detection protrusion on the toothless gear stirs the detection piece in the electrophotographic imaging device, and then information is transmitted to the printer to determine whether the developing box is new or the printable amount of the developing box and the specification and the like of the developing box. When the transmission gear rotates to face the toothless part of the toothless gear, the transmission gear is not meshed with the toothless gear, the transmission gear continues to rotate, but the toothless gear does not rotate along with the toothless gear, and the detection is finished. The detected piece with the structure needs to be tightly matched with the transmission gear through the toothed part and the tooth-lacking part of the tooth-lacking gear, so that the requirements on the manufacturing precision of the transmission gear and each part of the tooth-lacking gear are high, the production cost is increased, and the structure is complex.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a developing box, which adopts a simple structure to realize the detection of the cooperation of the developing box and an imaging device. The method is realized by the following technical scheme:

a developing cartridge includes a frame, a driving force receiving member, a transmission mechanism, and a detected assembly, the driving force receiving member and the detected assembly are mounted on the frame, and the detected assembly is connected with the driving force receiving member through the transmission mechanism and moves under the driving of the driving force receiving member; the method is characterized in that: the detected component comprises a screw rod, a sliding block and a detected piece, one end of the screw rod is connected with the transmission mechanism, the sliding block is installed on the screw rod and moves along the axial direction of the screw rod when the screw rod rotates, and the detected piece is movably installed on the frame and moves under the pushing of the sliding block.

As a further improvement of the utility model, the developing device further comprises a developing roller, a stirring frame and a powder feeding roller, wherein the screw is arranged at one end of the developing roller, the stirring frame or the powder feeding roller and rotates coaxially with the developing roller, the stirring frame or the powder feeding roller.

As a further improvement of the utility model, the sliding block is provided with a shifting part, the detected piece is provided with one or more shifted parts, and when the sliding block moves, the shifting part contacts with the shifted parts and pushes the detected piece to move.

As a further improvement of the utility model, the moving direction of the detected piece is perpendicular to or intersected with the moving direction of the slide block.

As a further improvement of the present invention, the slider is further provided with a driving portion, and the driving portion is embedded in the thread of the screw rod and drives the slider to move when the screw rod rotates.

As a further improvement of the present invention, the detected component further includes an elastic member, and the elastic member abuts against the frame and the detected member, respectively.

As a further improvement of the present invention, the detected member and the driving force receiving member are respectively located at both ends of the long side of the frame.

As a further improvement of the utility model, the frame is provided with a slide block limiting part which limits the slide block not to rotate.

As a further improvement of the present invention, the slider limiting portion is a limiting groove, and an extending direction of the limiting groove is parallel to a long side direction of the frame.

As a further improvement of the present invention, the frame is provided with a detected piece guiding part for guiding a moving direction of the detected piece.

As a further improvement of the present invention, the detected member guide portion is a guide groove in which the detected member is movably mounted.

As a further improvement of the present invention, the apparatus further includes a bearing member attached to an end face of one end of the long side of the frame, and the detected piece guide portion is provided on the bearing member.

As a further improvement of the present invention, the detected member and the bearing member are both made of a conductive material for supplying electric power to the developing roller.

According to the technical scheme, the detected component is formed by the screw rod, the sliding block and the detected component, the new and old detection work of the developing box is completed by matching with the detection element of the imaging device, the incomplete gear with high manufacturing precision requirement and complex manufacturing process and the detected component matched with the incomplete gear are replaced by the screw rod and the sliding block with low precision requirement and simpler process, the manufacturing rate and the production efficiency are improved, and the production cost is reduced. And the image forming apparatus can supply power to the developing cartridge by using the detected member made of a conductive material and the bearing member, thereby supplying power to the developing roller.

Drawings

Fig. 1 is a perspective view of a developing cartridge according to a first embodiment of the present invention.

Fig. 2 is a partially enlarged view of the portion I in fig. 1.

Fig. 3 is an exploded view of a detected component of a developing cartridge according to an embodiment of the present invention.

Fig. 4 is a partially enlarged view of a portion II in fig. 3.

Fig. 5 is a perspective view of an end cap of a developing cartridge according to a first embodiment of the present invention.

Fig. 6 is a left side view of a developing cartridge hidden frame end cap according to an embodiment of the present invention.

Fig. 7 is an exploded view of the detected components of the developing cartridge according to the second embodiment of the present invention.

Fig. 8 is a partially enlarged view of the portion III in fig. 7.

Detailed Description

The following description of the embodiments of the present invention will be further described with reference to the accompanying drawings, wherein for the purpose of facilitating explanation, the upper, lower, left, right, front, rear, etc. orientations may be defined in the application, and the definitions are intended to facilitate clear description of the relative positions of the structures, and are not intended to limit the actual orientations of the products during the manufacturing, use, sale, etc. The following further describes embodiments of the present invention with reference to the accompanying drawings:

example one

Referring to fig. 1 to 6, the present embodiment provides a developing cartridge, which includes a frame, a driving force receiving member 20, a transmission mechanism, a developing roller, a powder feeding roller, an agitating frame, and a detected component. The frame comprises a main frame 11 and an end cover 12, wherein a guide groove 111 (a guide part of a detected piece) is arranged on the main frame 11, and a limit groove 121 (a slide block limit part) and a contact window 122 of the detected piece are arranged on the end cover 12. The driving force receiving member 20, the developing roller, the powder feeding roller, and the agitating frame are rotatably mounted on the main frame 11.

The transmission mechanism comprises a powder feeding roller gear 31, a developing roller gear 32 and a stirring frame gear 33, wherein the powder feeding roller gear 31, the developing roller gear 32 and the stirring frame gear 33 are respectively installed at one end of the powder feeding roller, one end of the developing roller and one end of the stirring frame, a driving force receiving part and a driving force transmission part are arranged on the driving force receiving part 20, and the driving force transmission part is respectively meshed with the powder feeding roller gear 31, the developing roller gear 32 and the stirring frame gear 33.

The detected component comprises a screw rod 41, a sliding block 42 and a detected piece 43, one end of the screw rod 41 is connected with one end of the stirring frame far away from the stirring frame gear 33 (namely, one end far away from the transmission mechanism and the driving force receiving piece 20), the screw rod 41 coaxially rotates with the stirring frame, the other end of the screw rod abuts against the end cover 12 (as other realizable technical schemes, one end of the screw rod 41 can also be connected with one end of a developing roller or a powder feeding roller or the like, or is integrally formed with one end of the developing roller or the powder feeding roller or the stirring frame), a shifting part 421 and a guiding part 422 are arranged on the sliding block 42, a driving part 4221 is further arranged on the guiding part 422, the sliding block 42 is installed on the screw rod 41, the driving part 4221 is embedded into a thread of the screw rod 41, and the sliding block 42 is driven to move when the screw rod 41 rotates. The guide portion 422 of the slider 42 is located in the slider stopper 121, and restricts the rotation of the slider 42, and when the screw 41 rotates, the slider 42 moves in the axial direction of the screw 41. The detected piece 43 is provided with a connecting part 431 and one or more shifted parts 432 (the number of the shifted parts 432 is determined according to the detection requirement of the imaging device), the detected piece 43 is installed in the guide groove 111 on the frame through the connecting part 431, is partially or completely exposed in the range of the detected piece contact window 122, and can move relative to the guide groove 111. The shifted part 432 faces the slider 42, the shifted part 432 can contact with the shifting part 421 of the slider 42 during the moving process of the slider 42, and the detected member 43 moves along the direction of the guide groove 111 under the pushing of the shifting part 421. The slider stopper 121 is perpendicular to the direction of the guide groove 111, that is, the slider 42 is perpendicular to the moving direction of the detected object 43.

When the developing cartridge has not been used, the slider 42 is located at an end of the screw 41 close to the stirring rack (as another realizable solution, the slider 42 may also be located at an end of the screw 41 far from the stirring rack, determined by the thread direction of the screw 41). After the developing cartridge is mounted on the image forming apparatus for the first time, the driving force receiving member 20 is connected to a power source of the image forming apparatus, and when the image forming apparatus starts to operate, the driving force receiving member 20 rotates to drive the powder feeding roller, the developing roller and the agitating frame to rotate through the powder feeding roller gear 31, the developing roller gear 32 and the agitating frame gear 33. Since the screw 41 is installed at one end of the stirring rack, the screw 41 follows the stirring rack to rotate, and the sliding block 42 moves from one end close to the stirring rack to one end far away from the stirring rack (if the initial position of the sliding block 42 is at one end far away from the stirring rack, the sliding block moves towards the direction close to the stirring rack). In the moving process of the sliding block 42, the toggle part 421 contacts with the toggled part 432 of the detected member 43, so that the detected member 43 moves along the guide groove 111, the detected member 43 extends out of the detected member contact window 122 on the end cover 12 to push the detecting element of the image forming apparatus, an elastic member is arranged on the detecting element of the image forming apparatus, when the toggle part 421 of the sliding block 42 leaves the tooth crest of the toggled part 432, the elastic member pushes the detected member 43 to reset, and retracts into the inside of the image forming apparatus, and if a plurality of toggled parts 432 are arranged on the detected member 43, the above-mentioned action process is repeated until the sliding block 42 moves to the end position, and the detection work is completed. Thereafter, the toggle portion 421 on the slider no longer acts on the detected member 43. (as an achievable solution, an elastic member may be installed on the developing cartridge, one end of the elastic member abuts against the frame, the other end abuts against the detected member 43, and when the toggle portion 421 of the slider 42 leaves the tooth top of the sawtooth portion 432, the elastic member assists to push the detected member 53 to reset).

As another realizable solution, the developing cartridge further includes a bearing member made of a conductive material and mounted on an end face of one end of the long side of the frame, and the detected member guide is provided on the bearing member. Further, the detected member 43 is also made of a conductive material, and is mounted on the detected member guide portion of the bearing member to supply electric power to the developing roller.

Example two

Referring to fig. 7 and 8, the present embodiment provides a developing cartridge, which is different from the first embodiment in that: the main frame 11 is provided with a guiding part of the detected piece as a positioning column 112, the detected piece 43 is sleeved on the positioning column 112 in a swinging manner, and the sliding block 42 is contacted with a shifted part 432 of the detected piece 43 through a shifting part 421 to push the detected piece 43 to swing around the positioning column 112.

In the moving process of the sliding block 42, the shifting portion 421 contacts with the shifted portion 432 of the detected member 43, so that the detected member 43 swings around the positioning column 112, the detected member 43 extends out of the detected member contact window 122 on the end cover 12 to push the detecting element of the image forming apparatus, an elastic member is disposed on the detecting element of the image forming apparatus, when the shifting portion 421 of the sliding block 42 leaves the tooth crest of the shifted portion 432, the elastic member pushes the detected member 43 to reset and retract into the inside of the image forming apparatus, if a plurality of shifted portions 432 are disposed on the detected member 43, the above-mentioned action process is repeated until the sliding block 42 moves to the end position, the detection operation is completed, and thereafter, the shifting portion 421 on the sliding block no longer acts on the detected member 43. (as an achievable solution, an elastic member may be installed on the developing cartridge, one end of the elastic member abuts against the frame, the other end abuts against the detected member 43, and when the toggle portion 421 of the slider 42 leaves the tooth top of the sawtooth portion 432, the elastic member assists to push the detected member 43 to reset).

The above embodiments are merely for full disclosure and not for limitation, and any replacement of equivalent technical features, which can be obtained without inventive work based on the gist of the present invention, should be construed as the scope of the present disclosure.

Claims

1. A developing cartridge includes a frame, a driving force receiving member, a transmission mechanism, and a detected assembly, the driving force receiving member and the detected assembly are mounted on the frame, and the detected assembly is connected with the driving force receiving member through the transmission mechanism and moves under the driving of the driving force receiving member; the method is characterized in that: the detected component comprises a screw rod, a sliding block and a detected piece, one end of the screw rod is connected with the transmission mechanism, the sliding block is installed on the screw rod and moves along the axial direction of the screw rod when the screw rod rotates, and the detected piece is movably installed on the frame and moves under the pushing of the sliding block.

2. A developing cartridge according to claim 1, wherein: the developing roller, the stirring frame and the powder feeding roller are further included, and the screw is mounted at one end of the developing roller, the stirring frame or the powder feeding roller and rotates coaxially with the developing roller, the stirring frame or the powder feeding roller.

3. A developing cartridge according to claim 1, wherein: the slider is provided with a shifting part, the detected piece is provided with one or more shifted parts, and when the slider moves, the shifting part contacts with the shifted parts and pushes the detected piece to move.

4. A developing cartridge according to claim 3, wherein: the moving direction of the detected piece is perpendicular to or intersected with the moving direction of the sliding block.

5. A developing cartridge according to claim 1, wherein: the slider is also provided with a driving part, the driving part is embedded into the thread of the screw rod, and the slider is driven to move when the screw rod rotates.

6. A developing cartridge according to claim 1, wherein: the detected component further comprises an elastic piece, and the elastic piece abuts against the frame and the detected piece respectively.

7. A developing cartridge according to claim 1, wherein: the detected component and the driving force receiving member are respectively located at both ends of the long side of the frame.

8. A developing cartridge according to any one of claims 1-7, wherein: the frame is provided with a sliding block limiting part, and the sliding block limiting part limits the sliding block not to rotate.

9. A developing cartridge according to claim 8, wherein: the sliding block limiting part is a limiting groove, and the extending direction of the limiting groove is parallel to the long edge direction of the frame.

10. A developing cartridge according to any one of claims 1-7, wherein: the frame is provided with a detected piece guiding part for guiding the moving direction of the detected piece.

11. A developing cartridge according to claim 10, wherein: the detected piece guide part is a guide groove, and the detected piece is movably arranged in the guide groove.

12. A developing cartridge according to claim 10, wherein: the detection object guide part is arranged on the bearing component.

13. A developing cartridge according to claim 12, wherein: the detected member and the bearing member are both made of a conductive material and used for supplying electric energy to the developing roller.